[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

20040813: IMGDISP keyword: ALL (cont.)

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: 20040813: IMGDISP keyword: ALL (cont.)
  • Date: Fri, 13 Aug 2004 20:36:19 -0600
>From: "Kwan-yin Kong" <address@hidden>
>Organization: CCNY
>Keywords: 200408131552.i7DFqcaW028056 McIDAS IMGDISP IMGLIST

Hi Kwan-yin,

re: my experience with the IMGDISP command and the combination
of ALL= and TIME=

>      Thanks.  I'll check the IMGDISP command again.

Hmm...  I just tried loading sectors from the 1 km N0R national
composite, and I think I see what you were seeing:

IMGDISP NEXRCOMP/1KN0R-NAT ALL=1 50 EU=BREF SF=YES REFRESH='EG GRA=(GRA);MAP H 
GRA=(GRA)' TIME=00:00 00:59
IMGDISP: There are no images that meet the selection criteria
IMGDISP: done
IMGDISP failed, RC=2

I know that there are images whose TIMEs lie between 0Z and 0:59Z:

IMGLIST NEXRCOMP/1KN0R-NAT.ALL TIME=00:00 00:59
Image file directory listing for:NEXRCOMP/1KN0R-NAT
 Pos Satellite/         Date       Time      Center   Band(s)
     sensor                                 Lat  Lon
 --- -------------  ------------  --------  ---- ---- ------------
 117  RADAR         14 AUG 04227  00:00:00     TWX    27
 118  RADAR         14 AUG 04227  00:04:00     TWX    27
 119  RADAR         14 AUG 04227  00:08:00     TWX    27
 120  RADAR         14 AUG 04227  00:13:00     TWX    27
 121  RADAR         14 AUG 04227  00:17:00     TWX    27
 122  RADAR         14 AUG 04227  00:22:00     TWX    27
 123  RADAR         14 AUG 04227  00:26:00     TWX    27
 124  RADAR         14 AUG 04227  00:31:00     TWX    27
 125  RADAR         14 AUG 04227  00:36:00     TWX    27
 126  RADAR         14 AUG 04227  00:40:00     TWX    27
 127  RADAR         14 AUG 04227  00:45:00     TWX    27
 128  RADAR         14 AUG 04227  00:49:00     TWX    27
 129  RADAR         14 AUG 04227  00:54:00     TWX    27
 130  RADAR         14 AUG 04227  00:59:00     TWX    27

So, there really is a problem loading from the NEXRCOMP/1KN0R-NAT
dataset that I will need to investigate, and/or pass along to SSEC.

One that you could do to work around the problem is use IMGLIST
to get a listing of the number of images in the TIME= interval
you are interested in, and then set the ALL= keyword values using
that information.  I just did this, and it works fine meaning
that if you specify ALL=1 n, where 'n' is the number of images
that exist in the TIME= interval, then the command works fine.

>      As for what I asked about the surface data, what I 
>meant was the "sea-surface" temperature from ships and 
>buoys (not the regular air temp).

OK, I am sorry that I misunderstood what you were asking.  I don't
think that there are many observations of sea surface temperatures.
There are no observations that SFCPLOT can plot.  You may have to start
looking at model output to get a handle on sea surface temperatures.
To plot/contour values from model output (ADDE dataset RTGRIDS), you
will need to use GRDDISP.

I will get back to you with what I find on the plotting of time ranges
of data from the NEXRCOMP/1KN0R-NAT dataset.  The problem might be on
the server side, but I won't know for sure until I dig deeper.  Until
then, I recommend using IMGLIST to find out how many images can be
plotted and then setting ALL= in your script to numbers that work.

Cheers,

Tom
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publically available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.